void bsp_spurious_initialize()
{
uint32_t trap;
uint32_t level;
uint32_t mask;
level = sparc_disable_interrupts();
mask = LEON_REG.Interrupt_Mask;
for ( trap=0 ; trap<256 ; trap++ ) {
/*
* Skip window overflow, underflow, and flush as well as software
* trap 0 which we will use as a shutdown. Also avoid trap 0x70 - 0x7f
* which cannot happen and where some of the space is used to pass
* paramaters to the program.
*/
if (( trap == 5 || trap == 6 ) ||
(( trap >= 0x11 ) && ( trap <= 0x1f )) ||
(( trap >= 0x70 ) && ( trap <= 0x83 )))
continue;
set_vector(
(rtems_isr_entry) bsp_spurious_handler,
SPARC_SYNCHRONOUS_TRAP( trap ),
1
);
}
LEON_REG.Interrupt_Mask = mask;
sparc_enable_interrupts(level);
}
void
__gnat_install_handler_common (int t1, int t2)
{
uint32_t trap;
rtems_isr_entry previous_isr;
sigaction (SIGSEGV, &__gnat_error_vector, NULL);
sigaction (SIGFPE, &__gnat_error_vector, NULL);
sigaction (SIGILL, &__gnat_error_vector, NULL);
for (trap = 0; trap < 256; trap++)
{
/*
* Skip window overflow, underflow, and flush as well as software
* trap 0 which we will use as a shutdown. Also avoid trap 0x70 - 0x7f
* which cannot happen and where some of the space is used to pass
* paramaters to the program. 0x80 for system traps and
* 0x81 - 0x83 by the remote debugging stub.
* Avoid two bsp specific interrupts which normally are used
* by the real-time clock and UART B.
*/
if ((trap >= 0x11) && (trap <= 0x1f))
{
if ((trap != t1) && (trap != t2))
rtems_interrupt_catch (__gnat_interrupt_handler, trap, &previous_isr);
}
else if ((trap != 5 && trap != 6) && ((trap < 0x70) || (trap > 0x83)))
set_vector (__gnat_exception_handler, SPARC_SYNCHRONOUS_TRAP (trap), 1);
}
}
